What are your plans with the 180, are you going to transfer everything from your 75G or are you starting it from scratch? That may be the true test in the long run if it can keep SPS alive.
I don't know a lot about it but you always hear the term "old tank syndrome" thrown out there, I don't know if there is really an explination for it, or if it is just something that is suggested when an old tank seems to start going wrong.
- LOL you must have been editing your post as I was writing mine.. I think you already answered by question
